Mazda RX8 - Page 191

INSPECT WIRING HARNESS BETWEEN
BATTERY AND DISCHARGE HEADLIGHT
CONTROL MODULE
• Disconnect the negative battery cable.
• Inspect for continuity between the following
terminals:
 Battery (positive terminal) and
headlight relay (main fuse block
terminal A)
 Headlight relay terminal 3A and
HEAD LOW R 15 A fuse (RH)
terminal G
 Headlight relay terminal 3A and
HEAD LOW L 15 A fuse (LH)
terminal G
 HEAD LOW R 15 A fuse (RH)
terminal H and discharge headlight
control module terminal C
 HEAD LOW L 15 A fuse (LH)
terminal F and discharge headlight
control module terminal C
• Are the wiring harnesses normal?
No Replace the related wiring harness.
Yes Go to the next step.
6
INSPECT WIRING HARNESS BETWEEN
DISCHARGE HEADLIGHT CONTROL MODULE
AND GROUND
• Inspect wiring harness between discharge
headlight control module terminal D and
ground for following:
 Short to power supply
 Open circuit
• Inspect the headlight relay. (See RELAY
INSPECTION .)
• Is the wiring harness normal?
No Replace the related wiring harness.
Yes System inspection completed.
7
VERIFY WHETHER MALFUNCTION IS IN
DISCHARGE HEADLIGHT BULB OR
DISCHARGE HEADLIGHT CONTROL MODULE
• Install any other discharge headlight bulb
(low-beam). (See HEADLIGHT BULB
REMOVAL/INSTALLATION .)
• Connect the discharge headlight control
module connector.
• Turn the headlight switch to the HEADLIGHT
(LO) position.
• Does the headlight (low-beam) illuminate?
No
Replace the discharge headlight control
module.
(See DISCHARGE HEADLIGHT
CONTROL MODULE
REMOVAL/INSTALLATION .)
(w) RX-8 Body
Page 191